中国物理B ›› 2015, Vol. 24 ›› Issue (7): 70503-070503.doi: 10.1088/1674-1056/24/7/070503

• GENERAL • 上一篇    下一篇

Compression and stretching of ring-vortex solitons in a bulk nonlinear medium

来娴静a b, 蔡晓鸥b, 张解放a c   

  1. a School of Physical Science and Technology, Soochow University, Suzhou 215006, China;
    b Department of Basic Science, Zhejiang Shuren University, Hangzhou 310015, China;
    c Zhejiang University of Media and Communications, Hangzhou 310018, China
  • 收稿日期:2015-01-13 修回日期:2015-01-28 出版日期:2015-07-05 发布日期:2015-07-05

Compression and stretching of ring-vortex solitons in a bulk nonlinear medium

Lai Xian-Jing (来娴静)a b, Cai Xiao-Ou (蔡晓鸥)b, Zhang Jie-Fang (张解放)a c   

  1. a School of Physical Science and Technology, Soochow University, Suzhou 215006, China;
    b Department of Basic Science, Zhejiang Shuren University, Hangzhou 310015, China;
    c Zhejiang University of Media and Communications, Hangzhou 310018, China
  • Received:2015-01-13 Revised:2015-01-28 Online:2015-07-05 Published:2015-07-05
  • Contact: Lai Xian-Jing E-mail:laixianjing@163.com

摘要:

Compression and stretching of ring-vortex solitons, which is a novel self-similar solution of (2+1)-dimensional diffraction decreasing waveguide, is investigated analytically and numerically. We obtain the ring-vortex solitons via the similarity transformation method. The distance modulation for the width, the diffraction, and the nonlinear response, strongly affects the form and the behavior of the self-similar vortex, and facilitates the efficient compression of optical waves. This approximate ring-vortex solitons can reflect the real properties of self-similar optical vortex beams during propagation under certain parameter window selection. Specific examples and figures are given to illustrate discussed features. The results obtained in this paper may have potential values for all-optical data-processing schemes and the design of beam compressors and amplifiers.

关键词: graded-index waveguides, ring-vortex soliton, inhomogeneous

Abstract:

Compression and stretching of ring-vortex solitons, which is a novel self-similar solution of (2+1)-dimensional diffraction decreasing waveguide, is investigated analytically and numerically. We obtain the ring-vortex solitons via the similarity transformation method. The distance modulation for the width, the diffraction, and the nonlinear response, strongly affects the form and the behavior of the self-similar vortex, and facilitates the efficient compression of optical waves. This approximate ring-vortex solitons can reflect the real properties of self-similar optical vortex beams during propagation under certain parameter window selection. Specific examples and figures are given to illustrate discussed features. The results obtained in this paper may have potential values for all-optical data-processing schemes and the design of beam compressors and amplifiers.

Key words: graded-index waveguides, ring-vortex soliton, inhomogeneous

中图分类号:  (Solitons)

  • 05.45.Yv
42.65.Tg (Optical solitons; nonlinear guided waves)